Improvement in locomotive fire-boxes



C. H. FARLEY.

Locomotive Fire-Bnxes.

No. 134,741, l y. Patented Jan. 14.1873.

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UNITED STATES PATENT OFFICE.

CYRUS H. FARLEY, OF PORTLAND, MAINE.

IMPROVEMENT IN LOCOMOTIVE FIRE-BOXES.

Specification forming part of Letters Patent No. 134,741, dated January14, 1873.

the disturbance of the dust on the road. My

improvements consist mainly in a fire-box arranged and operated, as willbe hereinafter more fully described, so as to admit the air and regulatethe draft through the sides instead of, as heretofore, through thebottom, and of providing suitable guards, so arranged as to prevent thedraft from entering on a line below the horizontal, and preclude thedrawilng up of the snow, or the disturbance of the ust.

In the drawing, a represents the bottom of a box or pan, having verticalsides b formed at the top with horizontal flanges or outer projectingframe c, below which, extending lengthwise a suitable distance, areapertures or iiues d, that extend vertically to near the bottom of theinterior of the box or pan. Gonnected with the bottom and sides of thebox or pan at each corner are vertical right angled standards e, betweenwhich are hung, so as `to swing back and forth, dampers j', each ofwhich is operated by means of an arm, g, pivoted or hinged to thedamper, and connected by a pivot with a vertical arm, h', passingthrough a slot, in the bottom a, and forming one end of a bent lever, h,that is operated back and forth in guides c lo, by a pivoted lever, Z,formed with forward and cross arms, l l, that engage with and operatesimilar bent levers h, connected with the other dampers f; or thedampers f may be provided with and operated by any other suitablemechanism that may be preferred to open and close them. Attached to thebottom of the exterior of the box or pan a, and sloping outward on eachside and upward a sufficient distance to allow a passage for the air atthe top between them and the anges or frame c, are guards m, which serveto ward off the snow and prevent a direct upward draft. Supported on thebottom of the box or pan a is a fire-pan, p, having inclined sides p',and of the proper size to allow of the working of the dampers f, and toadmit the passage of a sufficient quantity of air. Resting on the top ofthe frame c, and extending over the top of the sides of the lire-pan p,are curved plates or shieldszgforminganair-space,s,throughwhich air isadmitted from the iiucs d into the top of the fire-pan p.

Heretofore in locomotive fire-boxes, of similar arrangement as the abovedescribed, much objection has been experienced by the deadening and.quenching of the fire bythe drawing up of snow, and by the whirling ofthe dust, caused by the direct upward draft created by the admission ofthe air through apertures or flues arranged under the bottom orhorizontal line of the fire-pan.

-In my improvements it will readily be observed, by referring to thedrawing, that the ilues d, through which the air is admitted are -in thesides above the bottom of the. horizon- `tal line of the fire-pan p, andthat they are,

moreover, protected by the inclined guards m, so that a direct upwarddraft is prevented, the draft being directed downward over the top ofthe guards m, which are in a form to throw off and prevent the entranceof any snow through the flues, which are regulated so as to check orincrease the draft by the operation of the dampersf.

Instead of the dampers f being arranged on the inside of the box, asherein shown and described, they may, if desired, be arranged to operateon the outside of, and form guards to, the flues d.

Having thus fully described my improvements, what I claim as myinvention, and desire to have secured to me by Iletters Patent, 1s

1. A locomotive nre-box provided with inclined guards m, arrangedsubstantially as and for the purpose specified.

2. The combination of the inclined guards on, and nues d, and dampers f,arranged in a locomotive fire-box, substantially as and for the purposesset forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.v j 4 Witnesses: OYRUS H. FARLEY.

JonNE. Dow, GEO. S. LESTER.

